Cells and organelles Flashcards
1
Q
Tupes of cells
A
Bacteria: no nucleus, or other organelles
Archaea: no nucleus, oftern extremophiles
Eukaryotes: nucleus and other organelles, sometimes multicellular life forms
2
Q
Advantage of EM over LM
A
Superior resolution
visualize the whole cell, not only a fluorescent probe
Huge magnification range
3
Q
Disadvantages of EM compared to LM
A
Requires fixation of cells
Only small pieces of tissue can be imaged
Time-consuming method
4
Q
Nucleus
A
Nucleolus and nuclear envelope
